Ei Electronics Ei420 Manual

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Side 1/4

Repeater and CO Alarm Interface

FOR USE WITH Ei261ENRC, 151TL, 154TL AND 156TLH

COMMUNICATES WITH ALL OTHER RADIOLINK DEVICES

Instruction Manual

Contains vital information on the product’s operation and

installation. Read and retain carefully. If you are just installing

this product the manual MUST be given to the householder.

1. Introduction

The Ei420 can be used for two purposes:

(1) It connects the Ei260ENRC Series Carbon Monoxide Alarms

with RadioLINK Smoke Alarms and accessories. When the CO

Alarm detects CO it will trigger all the other RadioLINK units

and vice versa. It can also be used to connect Ei151TL, 154TL

and 156TLH smoke/heat alarms to other RadioLINK units.

Note: anytime the CO alarm is mentioned in these instructions

it can also be applied to the Ei150 series of smoke/heat alarms.

(2) It can be used as a stand-alone RadioLINK Repeater unit

in installations that require additional signal coverage but where

the installation of an additional alarm may not be suitable.

Installing an Ei420 in an intermediate position will shorten

and/or provide multiple RF signal paths.

It is powered by 230V AC mains power and has built in

rechargeable Lithium cells. It is a stand alone model with its

own cover plate.

The Ei420 uses advanced transceiver and signal coding

technology to ensure robust and reliable RF signalling.

2. Installation

2.1 RadioLINK Interface to an Ei260ENRC Series CO Alarm

If purchasing the Ei420 as a RadioLINK interface with a CO

alarm then it should be mounted close to the alarm. It can be

mounted a short distance away as shown in Figure 2 or it can

be mounted directly above the alarm as shown in Figure 3.

Choose a suitable mounting position near the mains supply

but keep the Ei420 away from metal surfaces or large metal

objects (e.g. water cylinder, fuse boards) which can reduce

the RF signal range.

2.2 As a Repeater

The function of a Repeater is to receive and then re-transmit

the RF signals. This shortens signal paths throughout the

installation to give improved RF signal reliability. If purchasing

the Ei420 for use as a Repeater it should be mounted in an

intermediate position where the signal needs to beRadioLINK

strengthened (for example see figures 1(a) and 1(b)). The

Repeater function is not operational until all units have been

House Coded (see individual instruction lealets). The operation

of the Repeater can be observed as the Ei420 turns on its red

light as a RadioLINK message is being repeated. A maximum

of 10 units (e.g. Ei168RC and Ei420 units) can beRadioLINK

set as Repeaters in any one system. If using more than 10

units within a system see Section 8 (Technical Specification).

2.3 Mounting and Wiring

WARNING: Mains powered modules should be installed by a

qualified electrician in accordance with the Requirements for

Electrical Installations, BS7671. Failure to install the unit correctly

may expose the user to shock or fire hazards. This unit is not

waterproof and must not be exposed to dripping or splashing.

1. Disconnect the AC mains supply from the circuit that is

going to be used.

2. Where the incoming wiring is on the surface of the

wall/ceiling, the appropriately sized trunking / conduit must be

chosen to mate with the unit. There is one suitable surface

cabling knockout as shown in Figure 3 (the other two surface

entries are not recommended as the wiring may effect the

antenna signal). There is one rear entry knockout (see Figure

3.) Unscrew the cover attachment (see Figure 3). Use a sharp

knife to remove the material from the knockout, making sure

that there is no gap when mated with trunking/conduit.

3. Screw the Ei420 to the wall or ceiling after first removing the

required knockout and bringing the house wires through it

(see Figure 3).

4. Connect the house wires to the terminal block as follows:

L-Live to wires coloured brown or marked L,

N-Neutral to wires coloured blue or marked N

IC- Hardwire Interconnect to an Ei Electronics mains powered

alarm as shown in Figure 4(a) and Figure 4(b). Note: when the

Ei420 is being used as a stand alone repeater, do not connect

anything to the Interconnect terminal (see Figure 5.)

NB: The unit must not be earthed so do not connect a green /

yellow or copper earth wire to any terminal.

5. Activate the rechargeable cells by carefully and gently

sliding the switch to the “on” position (see Figure 3). This

switch must be in the ‘on’ position to ensure correct operation.

6. Fit and screw the cover to the Ei420 using the two screws

supplied.

7. Connect the mains power to the Ei420 module. Check the

green light is on. If the green light changes to red every 10

seconds then switch off the mains power, remove the cover

and check that the battery slide switch is in the “on” position

(see Figure 3). Replace the cover and turn the mains power

back on. If there is still a problem the rechargeable cells may

be depleted. Leave the unit on mains power for 2 hours to

charge and check that the green light is now on continuously.

8. Press and hold the House Code switch through the hole in

the cover using a small screwdriver, (see Figure 3) until the

green light changes to red. Immediately release the switch

and the light will flash red quickly. The green light will then

flash red every 5 seconds (this is a dual colour light so the

green light remains on when the red light is off and vice

versa). Similarly, put all the other RadioLINK units in the

property into House Code Mode (see relevant user

instructions) within 15 minutes (before the House Code

timeout period expires).

9. Check that all the RadioLINK units communicate with each

other by counting the number of times the light flashes on each

unit in turn. The light will flash red on the Ei420. For example,

3 units in the system should result in 3 flashes every 5

seconds, 4 units should result in 4 flashes and so on (if there

is a problem see Section 4 on Troubleshooting RF Link).

10. All the units will automatically exit the House Code Mode

after 30 minutes. However, p1-we recommend that you manually

exit the House Code Mode by pressing and holding the House

Code switch on the Ei420 or on an Ei168RC until the House

Code light turns on solidly. Immediately release the House

Code switch.The light should stop flashing and an “Exit House

Code” signal will be sent to all other Ei168RC and Ei420 units

in the system. (With other units such as the Ei405,RadioLINK

Ei407, Ei411 etc., the units can be taken out of House Code

Mode by pressing their House Code switch - see their

instructions for details). This reduces the risk of accidentally

House Coding your alarms with other RadioLINK systems.

(Note: To clear House Codes see Section 8 - Technical

Specification).

1 2 4 5

CO AlarmEi420

approx

1 to 2m

Figure 1

Weak RF signal

Ei420 installed in an

intermediate position

to strengthen the RF

signal

Figure 2a

Figure 2b

RECHAR

EABL

CELL

LIDE

WIT

OUS

WIT

ANTENNA

(KEEP CABLE

AWAY)

REAR ENTRY

OUT

INDICAT

RFA

CABL

ENTRY

Ei260ENRC

SERIES CO

ALARM

CRE

NTIN

MAIN

WIRIN

ARB

N M

XIDE ALAR

NNECT MAIN

TERMINAL BL

OCK

OUSE

WIT

i42

INDI

R LI

REEN - MAIN

RED - H

OUS

E C

DIN

R L

W BATTER

ATTACHMEN

SCREWS

Figure 3a - Connecting an Ei420 to an Ei260ENRC

Series CO Alarm

Figure 3b

LIVE

INTERCONNECT

NEUTRAL

Ei151TL, Ei154TL,

Ei156TLH Smoke/Heat

Alarm

i42

L IC N

Figure 4b - The Ei420 used as an interface with an

Ei150 Series Smoke/Heat Alarm

i42

Figure 5 - The Ei420 used as a stand alone

RadioLINK Repeater

Model: Ei420

LIVE

INTERCONNECT

NEUTRAL

Ei260ENRC Series

CO Alarm

i42

L IC N

Figure 4a - The Ei420 used as an interface with an

Ei260ENRC Series Carbon Monoxide Alarm

A16261-RO-Ei420-UC-ENG 21/12/07 9:56 AM Page 1

Produkt Specifikationer

Mærke:	Ei Electronics
Kategori:	Ikke kategoriseret
Model:	Ei420

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